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Proton nmr nmr spectroscopy table
One of the differences is in the complexity of the data obtained. The LSR is a metal complex of six coordinate sides. This will select the appropriate frequency for 31 P. Nuclear shielding is affected by the chemical environment, as different neighboring atoms will have different effects on nuclear shielding, as electronegative atoms will tend to decrease shielding and vice versa. Contrast agents are paramagnetic and can interact with dipole moments of water molecules, causing fluctuations in molecules. Pretsch, P. For example, one can combine homonuclear and heteronuclear experiments and piece together the information from the two techniques, with a process known as Parallel Acquisition NMR Spectroscopy or PANSY. The Actual Experiment and Important Acquisition Parameters The acquisition of a 2D spectrum will vary from instrument to instrument, but the process is virtually identical to obtaining a 13 C spectrum.